docs: def change_participation_status(self, calendar_id, event_uid, status):
          """Changes the participation status for a calendar event
  
          :param string calendar_id: The String Cronofy ID for the calendar to delete the event from.
          :param string event_uid: A String uniquely identifying the event for your
          application (note: this is NOT an ID generated by Cronofy).
          :param string status: A String to set the participation status of the event to
          :return: None
          """
          data = {'status': status}
  
          self.request_handler.post('calendars/%s/events/%s/participation_status' % (calendar_id, event_uid), data=data)